3402261213665 has 8 divisors (see below), whose sum is σ = 4159745786088. Its totient is φ = 2670454084480.

The previous prime is 3402261213623. The next prime is 3402261213671. The reversal of 3402261213665 is 5663121622043.

It can be written as a sum of positive squares in 4 ways, for example, as 1031055437281 + 2371205776384 = 1015409^2 + 1539872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3402261213665 - 2¹⁶ = 3402261148129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6419360516 + ... + 6419361045.

It is an arithmetic number, because the mean of its divisors is an integer number (519968223261).

Almost surely, 2^{3402261213665} is an apocalyptic number.

It is an amenable number.

3402261213665 is a deficient number, since it is larger than the sum of its proper divisors (757484572423).

3402261213665 is a wasteful number, since it uses less digits than its factorization.

3402261213665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838721619.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 3402261213665 in words is "three trillion, four hundred two billion, two hundred sixty-one million, two hundred thirteen thousand, six hundred sixty-five".